net/sfc/base: import Rx packed stream mode

[dpdk.git] / drivers / net / sfc / base / ef10_impl.h

diff --git a/drivers/net/sfc/base/ef10_impl.h b/drivers/net/sfc/base/ef10_impl.h
index 01c48c8..94706dc 100644 (file)
--- a/drivers/net/sfc/base/ef10_impl.h
+++ b/drivers/net/sfc/base/ef10_impl.h
@@ -462,6 +462,22 @@ ef10_tx_qpush(
        __in            unsigned int added,
        __in            unsigned int pushed);
 
+#if EFSYS_OPT_RX_PACKED_STREAM
+extern                 void
+ef10_rx_qps_update_credits(
+       __in    efx_rxq_t *erp);
+
+extern __checkReturn   uint8_t *
+ef10_rx_qps_packet_info(
+       __in            efx_rxq_t *erp,
+       __in            uint8_t *buffer,
+       __in            uint32_t buffer_length,
+       __in            uint32_t current_offset,
+       __out           uint16_t *lengthp,
+       __out           uint32_t *next_offsetp,
+       __out           uint32_t *timestamp);
+#endif
+
 extern __checkReturn   efx_rc_t
 ef10_tx_qpace(
        __in            efx_txq_t *etp,
@@ -844,6 +860,36 @@ ef10_external_port_mapping(
        __in            uint32_t port,
        __out           uint8_t *external_portp);
 
+#if EFSYS_OPT_RX_PACKED_STREAM
+
+/* Data space per credit in packed stream mode */
+#define        EFX_RX_PACKED_STREAM_MEM_PER_CREDIT (1 << 16)
+
+/*
+ * Received packets are always aligned at this boundary. Also there always
+ * exists a gap of this size between packets.
+ * (see SF-112241-TC, 4.5)
+ */
+#define        EFX_RX_PACKED_STREAM_ALIGNMENT 64
+
+/*
+ * Size of a pseudo-header prepended to received packets
+ * in packed stream mode
+ */
+#define        EFX_RX_PACKED_STREAM_RX_PREFIX_SIZE 8
+
+/* Minimum space for packet in packed stream mode */
+#define        EFX_RX_PACKED_STREAM_MIN_PACKET_SPACE                \
+       P2ROUNDUP(EFX_RX_PACKED_STREAM_RX_PREFIX_SIZE +      \
+                 EFX_MAC_PDU_MIN +                          \
+                 EFX_RX_PACKED_STREAM_ALIGNMENT,            \
+                 EFX_RX_PACKED_STREAM_ALIGNMENT)
+
+/* Maximum number of credits */
+#define        EFX_RX_PACKED_STREAM_MAX_CREDITS 127
+
+#endif /* EFSYS_OPT_RX_PACKED_STREAM */
+
 #ifdef __cplusplus
 }
 #endif